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4.0
Jun 30, 2018
06/18
by
Zhongqing Wang; Yue Zhang
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We present opinion recommendation, a novel task of jointly predicting a custom review with a rating score that a certain user would give to a certain product or service, given existing reviews and rating scores to the product or service by other users, and the reviews that the user has given to other products and services. A characteristic of opinion recommendation is the reliance of multiple data sources for multi-task joint learning, which is the strength of neural models. We use a single...
Topics: Computing Research Repository, Computation and Language
Source: http://arxiv.org/abs/1702.01517
2
2.0
Jun 30, 2018
06/18
by
Yu-Hao Zhou; Li-Yue Zhang; Y. Ouyang; P. F. Chen; C. Fang
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eye 2
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The large-amplitude longitudinal oscillations of solar filaments have been observed and explored for more than ten years. Previous studies are mainly based on the one-dimensional rigid flux tube model with a single magnetic dip. However, it is noticed that there might be two magnetic dips, and hence two threads, along one magnetic field line. Following the previous work, we intend to investigate the kinematics of the filament longitudinal oscillations when two threads are magnetically...
Topics: Solar and Stellar Astrophysics, Astrophysics
Source: http://arxiv.org/abs/1703.06560
3
3.0
Jun 30, 2018
06/18
by
Mark B. Wise; Yue Zhang
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eye 3
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The simplest renormalizable effective field theories with asymmetric dark matter bound states contain two additional gauge singlet fields one being the dark matter and the other a mediator particle that the dark matter annihilates into. We examine the physics of one such model with a Dirac fermion as the dark matter and a real scalar mediator. For a range of parameters the Yukawa coupling of the dark matter to the mediator gives rise to stable asymmetric dark matter bound states. We derive...
Topics: High Energy Physics - Experiment, High Energy Physics - Phenomenology, Astrophysics, Cosmology and...
Source: http://arxiv.org/abs/1407.4121
3
3.0
Jun 28, 2018
06/18
by
Haipeng An; Clifford Cheung; Yue Zhang
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ATLAS and CMS have each reported a modest diphoton excess consistent with the decay of a broad resonance at ~ 750 GeV. We show how this signal can arise in a weakly coupled theory comprised solely of narrow width particles. In particular, if the decaying particle is produced off-shell, then the associated diphoton resonance will have a broad, adjustable width. We present simplified models which explain the diphoton excess through the three-body decay of a scalar or fermion. Our minimal...
Topics: High Energy Physics - Experiment, High Energy Physics - Phenomenology
Source: http://arxiv.org/abs/1512.08378
3
3.0
Jun 30, 2018
06/18
by
Mark B. Wise; Yue Zhang
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eye 3
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We consider all the dimension 6 operators as well as some simple extensions of the standard model that give new contributions to neutrino interactions with matter. Such interactions are usually parametrized by $\epsilon_{\alpha \beta}$, where $\alpha$ and $\beta$ are neutrino flavor indices taking the values $e$, $\mu$ and $\tau$. In the simple models we consider the $\epsilon_{\alpha \beta}$'s are much more constrained than in the operator-based model-independent approach. Typically the...
Topics: High Energy Physics - Phenomenology, High Energy Physics - Experiment
Source: http://arxiv.org/abs/1404.4663
2
2.0
Jun 29, 2018
06/18
by
Haipeng An; Mark B. Wise; Yue Zhang
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eye 2
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We study the impact of bound state formation on dark matter annihilation rates in models where dark matter interacts via a light mediator, the dark photon. We derive the general cross section for radiative capture into all possible bound states, and point out its non-trivial dependence on the dark matter velocity and the dark photon mass. For indirect detection, our result shows that dark matter annihilation inside bound states can play an important role in enhancing signal rates over the rate...
Topics: Astrophysics, High Energy Physics - Phenomenology, High Energy Astrophysical Phenomena
Source: http://arxiv.org/abs/1604.01776
3
3.0
Jun 30, 2018
06/18
by
Yue Zhang; Andreas A. Malikopoulos; Christos G. Cassandras
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eye 3
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In earlier work, we addressed the problem of optimally controlling on line connected and automated vehicles crossing two adjacent intersections in an urban area to minimize fuel consumption without any explicit traffic signaling and without considering left and right turns. In this paper, we extend the solution of this problem to account for left and right turns under hard safety constraints. Furthermore, we formulate and solve another optimization problem to minimize a measure of passenger...
Topics: Optimization and Control, Mathematics
Source: http://arxiv.org/abs/1703.06956
2
2.0
Apr 5, 2021
04/21
by
Jian-Jun, Wang; Jin-Zi, Wu; Min-Yue, Zhang; Jun, Chen; Wen-Yan, Chen; Qi-Xiang, Yu
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eye 2
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comment 0
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41
Sep 20, 2013
09/13
by
Miha Nemevsek; Goran Senjanovic; Yue Zhang
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eye 41
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We investigate the viability of having dark matter in the minimal left-right symmetric theory. We find the lightest right-handed neutrino with a mass around keV as the only viable candidate consistent with a TeV scale of left-right symmetry. In order to account for the correct relic density with such low scales, the thermal overproduction of the dark matter in the early universe is compensated by a sufficient late entropy production due to late decay of heavier right-handed neutrinos. We point...
Source: http://arxiv.org/abs/1205.0844v3
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5.0
Jun 29, 2018
06/18
by
Ruirui Xu; Zhongyu Ma; Yue Zhang; Yuan Tian; E. N. E. van Dalen; H. Müther
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The Microscopic Otical Model Potential is evaluated within a relativistic scheme which provides a natural and consistent relation between the spin-orbit part and the central part of the potential. The Dirac-Brueckner-Hartree-Fock (DBHF) approach provides such a microscopic relativistic scheme, which is based on a realistic nucleon-nucleon interaction and reproduce the saturation properties of symmetric nuclear matter without any adjustable parameter. Its solution using the projection technique...
Topic: Nuclear Theory
Source: http://arxiv.org/abs/1605.07778
7
7.0
Jun 29, 2018
06/18
by
Jim Alexander; Marco Battaglieri; Bertrand Echenard; Rouven Essig; Matthew Graham; Eder Izaguirre; John Jaros; Gordan Krnjaic; Jeremy Mardon; David Morrissey; Tim Nelson; Phil Ilten; Joe Incandela; Gianluca Inguglia; Kent Irwin; Igal Jaegle; Robert P. Johnson; Yonatan Kahn; Grzegorz Kalicy; Zhong-Bo Kang; Vardan Khachatryan; Maxim Perelstein; Venelin Kozhuharov; N. V. Krasnikov; Valery Kubarovsky; Eric Kuflik; Noah Kurinsky; Ranjan Laha; Gaia Lanfranchi; Dale Li; Tongyan Lin; Mariangela Lisanti; Matt Pyle; Kun Liu; Ming Liu; Ben Loer; Dinesh Loomba; Valery E. Lyubovitskij; Aaron Manalaysay; Giuseppe Mandaglio; Jeremiah Mans; W. J. Marciano; Thomas Markiewicz; Adam Ritz; Luca Marsicano; Takashi Maruyama; Victor A. Matveev; David McKeen; Bryan McKinnon; Dan McKinsey; Harald Merkel; Jeremy Mock; Maria Elena Monzani; Omar Moreno; Philip Schuster; Corina Nantais; Sebouh Paul; Michael Peskin; Vladimir Poliakov; Antonio D Polosa; Maxim Pospelov; Igor Rachek; Balint Radics; Mauro Raggi; Nunzio Randazzo; Brian Shuve; Blair Ratcliff; Alessandro Rizzo; Thomas Rizzo; Alan Robinson; Andre Rubbia; David Rubin; Dylan Rueter; Tarek Saab; Elena Santopinto; Richard Schnee; Natalia Toro; Jessie Shelton; Gabriele Simi; Ani Simonyan; Valeria Sipala; Oren Slone; Elton Smith; Daniel Snowden-Ifft; Matthew Solt; Peter Sorensen; Yotam Soreq; Richard G Van De Water; Stefania Spagnolo; James Spencer; Stepan Stepanyan; Jan Strube; Michael Sullivan; Arun S. Tadepalli; Tim Tait; Mauro Taiuti; Philip Tanedo; Rex Tayloe; Daniel Akerib; Jesse Thaler; Nhan V. Tran; Sean Tulin; Christopher G. Tully; Sho Uemura; Maurizio Ungaro; Paolo Valente; Holly Vance; Jerry Vavra; Tomer Volansky; Haipeng An; Belina von Krosigk; Andrew Whitbeck; Mike Williams; Peter Wittich; Bogdan Wojtsekhowski; Wei Xue; Jong Min Yoon; Hai-Bo Yu; Jaehoon Yu; Tien-Tien Yu; Konrad Aniol; Yue Zhang; Yue Zhao; Yiming Zhong; Kathryn Zurek; Isaac J. Arnquist; David M. Asner; Henning O. Back; Keith Baker; Nathan Baltzell; Dipanwita Banerjee; Brian Batell; Daniel Bauer; James Beacham; Jay Benesch; James Bjorken; Nikita Blinov; Celine Boehm; Mariangela Bondí; Walter Bonivento; Fabio Bossi; Stanley J. Brodsky; Ran Budnik; Stephen Bueltmann; Masroor H. Bukhari; Raymond Bunker; Massimo Carpinelli; Concetta Cartaro; David Cassel; Gianluca Cavoto; Andrea Celentano; Animesh Chaterjee; Saptarshi Chaudhuri; Gabriele Chiodini; Hsiao-Mei Sherry Cho; Eric D. Church; D. A. Cooke; Jodi Cooley; Robert Cooper; Ross Corliss; Paolo Crivelli; Francesca Curciarello; Annalisa D'Angelo; Hooman Davoudiasl; Marzio De Napoli; Raffaella De Vita; Achim Denig; Patrick deNiverville; Abhay Deshpande; Ranjan Dharmapalan; Bogdan Dobrescu; Sergey Donskov; Raphael Dupre; Juan Estrada; Stuart Fegan; Torben Ferber; Clive Field; Enectali Figueroa-Feliciano; Alessandra Filippi; Bartosz Fornal; Arne Freyberger; Alexander Friedland; Iftach Galon; Susan Gardner; Francois-Xavier Girod; Sergei Gninenko; Andrey Golutvin; Stefania Gori; Christoph Grab; Enrico Graziani; Keith Griffioen; Andrew Haas; Keisuke Harigaya; Christopher Hearty; Scott Hertel; JoAnne Hewett; Andrew Hime; David Hitlin; Yonit Hochberg; Roy J. Holt; Maurik Holtrop; Eric W. Hoppe; Todd W. Hossbach; Lauren Hsu
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This report, based on the Dark Sectors workshop at SLAC in April 2016, summarizes the scientific importance of searches for dark sector dark matter and forces at masses beneath the weak-scale, the status of this broad international field, the important milestones motivating future exploration, and promising experimental opportunities to reach these milestones over the next 5-10 years.
Topics: Astrophysics, High Energy Physics - Phenomenology, Cosmology and Nongalactic Astrophysics, Nuclear...
Source: http://arxiv.org/abs/1608.08632
2
2.0
Jun 30, 2018
06/18
by
Yue Zhang; Wangdong Qi; Guangxia Li; Su Zhang
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The radio interferometric positioning system (RIPS) is a novel positioning solution used in wireless sensor networks. This letter explores the ranging accuracy of RIPS in two configurations. In the linear step-frequency (LSF) configuration, we derive the mean square error (MSE) of the maximum likelihood (ML) estimator. In the random step-frequency (RSF) configuration, we introduce average MSE to characterize the performance of the ML estimator. The simulation results fit well with theoretical...
Topics: Networking and Internet Architecture, Mathematics, Computing Research Repository, Information Theory
Source: http://arxiv.org/abs/1403.1323
3
3.0
Jun 29, 2018
06/18
by
Yue Zhang; Christos G. Cassandras; Andreas A. Malikopoulos
texts
eye 3
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Earlier work has established a decentralized optimal control framework for coordinating online a continuous flow of connected automated vehicles (CAVs) entering a control zone and crossing two adjacent intersections in an urban area. A solution, when it exists, allows the vehicles to cross the intersections without the use of traffic lights, without creating congestion on the connecting road, and under the hard safety constraint of collision avoidance. We establish the conditions under which...
Topics: Optimization and Control, Mathematics
Source: http://arxiv.org/abs/1608.04311
4
4.0
Jun 30, 2018
06/18
by
Jun He; Yue Zhang
texts
eye 4
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In this paper, we present GASG21 (Grassmannian Adaptive Stochastic Gradient for $L_{2,1}$ norm minimization), an adaptive stochastic gradient algorithm to robustly recover the low-rank subspace from a large matrix. In the presence of column outliers, we reformulate the batch mode matrix $L_{2,1}$ norm minimization with rank constraint problem as a stochastic optimization approach constrained on Grassmann manifold. For each observed data vector, the low-rank subspace $\mathcal{S}$ is updated by...
Topics: Statistics, Mathematics, Computing Research Repository, Numerical Analysis, Computer Vision and...
Source: http://arxiv.org/abs/1412.4044
2
2.0
Jun 29, 2018
06/18
by
Haipeng An; Mark B. Wise; Yue Zhang
texts
eye 2
favorite 0
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We consider a dark sector consisting of dark matter that is a Dirac fermion and a scalar mediator. This model has been extensively studied in the past. If the scalar couples to the dark matter in a parity conserving manner then dark matter annihilation to two mediators is dominated by the P-wave channel and hence is suppressed at very low momentum. The indirect detection constraint from the anisotropy of the Cosmic Microwave Background is usually thought to be absent in the model because of...
Topics: Astrophysics, High Energy Physics - Phenomenology, Cosmology and Nongalactic Astrophysics, High...
Source: http://arxiv.org/abs/1606.02305
2
2.0
Jun 29, 2018
06/18
by
Yue Zhang
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eye 2
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We explore the self-interacting dark matter scenario in a simple dark sector model where the dark matter interacts through a dark photon. Splitting a Dirac fermion dark matter into two levels using a small Majorana mass can evade strong direct detection constraints on the kinetic mixing between the dark and normal photons, thus allowing the dark sector to be more visible at high intensity and/or high energy experiments. It is pointed out that such a mass splitting has a strong impact on the...
Topics: Astrophysics, High Energy Physics - Phenomenology, Cosmology and Nongalactic Astrophysics, High...
Source: http://arxiv.org/abs/1611.03492
2
2.0
Jun 29, 2018
06/18
by
Linfeng Song; Yue Zhang; Xiaochang Peng; Zhiguo Wang; Daniel Gildea
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eye 2
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The task of AMR-to-text generation is to generate grammatical text that sustains the semantic meaning for a given AMR graph. We at- tack the task by first partitioning the AMR graph into smaller fragments, and then generating the translation for each fragment, before finally deciding the order by solving an asymmetric generalized traveling salesman problem (AGTSP). A Maximum Entropy classifier is trained to estimate the traveling costs, and a TSP solver is used to find the optimized solution....
Topics: Computation and Language, Computing Research Repository
Source: http://arxiv.org/abs/1609.07451
2
2.0
Jun 30, 2018
06/18
by
Yue Zhang; Wangdong Qi; Su Zhang
texts
eye 2
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It is a challenge to specify unambiguous distance (UD) in a phase-based ranging system with hopping frequencies (PRSHF). In this letter, we propose to characterize the UD in a PRSHF by the probability that it takes on its maximum value. We obtain a very simple and elegant expression of the probability with growth estimation techniques from analytic number theory. It is revealed that the UD in a PRSHF usually takes on the maximum value with as few as 10 frequencies in measurement, almost...
Topics: Computing Research Repository, Other Computer Science
Source: http://arxiv.org/abs/1403.1923
4
4.0
Jun 30, 2018
06/18
by
Yue Zhang
texts
eye 4
favorite 0
comment 0
A light hidden gauge boson with kinetic mixing with the usual photon is a popular setup in theories of dark matter. The supernova cooling via radiating the hidden boson is known to put an important constraint on the mixing. I consider the possible role dark matter, which under reasonable assumptions naturally exists inside supernova, can play in the cooling picture. Because the interaction between the hidden gauge boson and DM is likely unsuppressed, even a small number of dark matter compared...
Topics: Astrophysics, High Energy Astrophysical Phenomena, High Energy Physics - Experiment, Cosmology and...
Source: http://arxiv.org/abs/1404.7172
3
3.0
Jun 29, 2018
06/18
by
Zhenghua Li; Yue Zhang; Jiayuan Chao; Min Zhang
texts
eye 3
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Recently, these has been a surge on studying how to obtain partially annotated data for model supervision. However, there still lacks a systematic study on how to train statistical models with partial annotation (PA). Taking dependency parsing as our case study, this paper describes and compares two straightforward approaches for three mainstream dependency parsers. The first approach is previously proposed to directly train a log-linear graph-based parser (LLGPar) with PA based on a...
Topics: Computation and Language, Computing Research Repository, Learning
Source: http://arxiv.org/abs/1609.09247
3
3.0
Jun 29, 2018
06/18
by
Amarjit Soni; Yue Zhang
texts
eye 3
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We investigate the possibility that the dark matter candidate is from a pure non-abelian gauge theory of the hidden sector, motivated in large part by its elegance and simplicity. The dark matter is the lightest bound state made of the confined gauge fields, the hidden glueball. We point out this simple setup is capable of providing rich and novel phenomena in the dark sector, especially in the parameter space of large N. They include self-interacting and warm dark matter scenarios,...
Topics: Astrophysics, High Energy Physics - Phenomenology, Cosmology and Nongalactic Astrophysics
Source: http://arxiv.org/abs/1602.00714
2
2.0
Jun 29, 2018
06/18
by
Yue Zhang; Ethan Glor; Mu Li; Tianyi Liu; kareem Wahid; William Zhang; Robert Riggleman; Zahra Fakhraai
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Physical vapor deposition (PVD) is widely used in manufacturing ultra-thin layers of amorphous organic solids. Here, we demonstrate that these films exhibit a sharp transition from glassy solid to liquid-like behavior with thickness below 30 nm. This liquid-like behavior persists even at temperatures well below the glass transition temperature, T$_{\mathrm{g}}$. The enhanced dynamics in these films can produce large scale morphological features during PVD and lead to a dewetting instability in...
Topics: Soft Condensed Matter, Condensed Matter
Source: http://arxiv.org/abs/1603.07244
3
3.0
Jun 30, 2018
06/18
by
Mark B. Wise; Yue Zhang
texts
eye 3
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We consider the bound state problem for a field theory that contains a Dirac fermion $\chi$ that Yukawa couples to a (light) scalar field $\phi$. We are interested in bound states with a large number $N$ of $\chi$ particles. A Fermi gas model is used to numerically determine the dependence of the radius $R$ of these bound states on $N$ and also the dependence of the binding energy on $N$. Since scalar interactions with relativistic $\chi$'s are suppressed two regimes emerge. For modest values...
Topics: High Energy Physics - Phenomenology, High Energy Astrophysical Phenomena, Astrophysics, Cosmology...
Source: http://arxiv.org/abs/1411.1772
Mendeley Climate Change Library
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43
Jul 5, 2019
07/19
by
Yue Zhang; Lizhen Zhang; Ning Yang; Neil Huth; Enli Wang; Wopke van der Werf; Qi Wang; Dongsheng Zhang; Ruonan Wang; Hui Gao; Niels P.R. Anten
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Year to year variability in weather poses serious risks to crop production in the environmentally fragile agro-ecosystems of cool semi-arid areas, and future climate changes might further aggravate those risks. This study aims to quantify the contribution of altered sowing time windows to reduce climate risk for the production of oats (Avena sativa), a crop that is well adapted to short growing seasons and low rainfall. The APSIM-Oats model was calibrated and validated for phenology,...
Topics: APSIM-Oats, Climate change, Cumulative probability, Optimal sowing time window, Water limited...
6
6.0
Nov 4, 2019
11/19
by
He Yue, Zhang Jia-Yan, Li Xiu-Jie, Li Ti-Zhi
texts
eye 6
favorite 0
comment 0
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16
Jun 28, 2018
06/18
by
Chien-Yi Chen; S. Dawson; Yue Zhang
texts
eye 16
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We explore CP violating aspects in the Higgs sector of models where new vectorlike quarks carry Yukawa couplings mainly to the third generation quarks of the Standard Model. We point out that in the simplest model, Higgs CP violating interactions only exist in the hWW channel. At low energy, we find that rare B decays can place similarly strong constraints as those from electric dipole moments on the source of CP violation. These observations offer a new handle to discriminate from other Higgs...
Topic: High Energy Physics - Phenomenology
Source: http://arxiv.org/abs/1507.07020
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43
Sep 22, 2013
09/13
by
Yue Zhang; Bo Hua Li; Chong Sheng Li; Jun Gao; Hua Xing Zhu
texts
eye 43
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We present the complete next-to-leading order (NLO) QCD corrections to the top quark associated with $\gamma$ production induced by model-independent $tq\gamma$ and $tqg$ flavor-changing neutral-current (FCNC) couplings at hadron colliders, respectively. We also consider the mixing effects between the $tq\gamma$ and $tqg$ FCNC couplings for this process. Our results show that, for the $tq\gamma$ couplings, the NLO QCD corrections can enhance the total cross sections by about 50% and 40% at the...
Source: http://arxiv.org/abs/1101.5346v1
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39
Sep 22, 2013
09/13
by
Bo Hua Li; Yue Zhang; Chong Sheng Li; Jun Gao; Hua Xing Zhu
texts
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We present the complete next-to-leading order (NLO) QCD corrections to $tZ$ associated production induced by the model-independent $tqg$ and $tqZ$ flavor-changing neutral-current couplings at hadron colliders, respectively. Our results show that, for the $tuZ$ coupling the NLO QCD corrections can enhance the total cross sections by about 60% and 42%, and for the $tcZ$ coupling by about 51% and 43% at the Tevatron and LHC, respectively. The NLO corrections, for the $tug$ couplings, can enhance...
Source: http://arxiv.org/abs/1103.5122v2
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64
Sep 23, 2013
09/13
by
Yue Zhang
texts
eye 64
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We study the top quark portal dominated dark matter interactions, and its implications for the gamma ray line searches. In this picture, the dark matter interactions with photons and gluons are loop induced by the axial anomaly of the top quark current. We show there can be a natural suppression of the tree-level annihilation of dark matter, and the photon channel in turn has a substantial rate when the main annihilation proceeds into gluons. We observe a competition between the indirect...
Source: http://arxiv.org/abs/1212.2730v2
2
2.0
Jun 28, 2018
06/18
by
Haipeng An; Bertrand Echenard; Maxim Pospelov; Yue Zhang
texts
eye 2
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A model of dark sector where $O({\rm few~GeV})$ mass dark matter particles $\chi$ couple to a lighter dark force mediator $V$, $m_V \ll m_\chi$, is motivated by the recently discovered mismatch between simulated and observed shapes of galactic haloes. Such models, in general, provide a challenge for direct detection efforts and collider searches. We show that for a large range of coupling constants and masses, the production and decay of the bound states of $\chi$, such as $0^{-+}$ and $1^{--}$...
Topics: High Energy Physics - Experiment, Cosmology and Nongalactic Astrophysics, Astrophysics, High Energy...
Source: http://arxiv.org/abs/1510.05020
2
2.0
Jun 29, 2018
06/18
by
Shufeng Xiong; Yue Zhang; Donghong Ji; Yinxia Lou
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eye 2
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Aspect phrase grouping is an important task in aspect-level sentiment analysis. It is a challenging problem due to polysemy and context dependency. We propose an Attention-based Deep Distance Metric Learning (ADDML) method, by considering aspect phrase representation as well as context representation. First, leveraging the characteristics of the review text, we automatically generate aspect phrase sample pairs for distant supervision. Second, we feed word embeddings of aspect phrases and their...
Topics: Computation and Language, Computing Research Repository
Source: http://arxiv.org/abs/1604.08672
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11
Jun 27, 2018
06/18
by
Hooman Davoudiasl; Yue Zhang
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We propose and investigate a novel, minimal, and experimentally testable framework for baryogenesis, dubbed dexiogenesis, using baryon number violating effective interactions of right-handed Majorana neutrinos responsible for the seesaw mechanism. The distinct LHC signature of our framework is same-sign top quark final states, possibly originating from displaced vertices. The region of parameters relevant for LHC phenomenology can also yield concomitant signals in nucleon decay experiments. We...
Topics: High Energy Physics - Experiment, High Energy Physics - Phenomenology
Source: http://arxiv.org/abs/1504.07244
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41
Sep 21, 2013
09/13
by
Shao-Long Chen; Yue Zhang
texts
eye 41
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We study the indirect detection of dark matter through neutrino flux from their annihilation in the center of the Sun, in a class of theories where the dark matter-nucleon spin-independent interactions break the isospin symmetry. We point out that, while the direct detection bounds with heavy targets like Xenon are weakened and reconciled with the positive signals in DAMA and CoGeNT experiments, the indirect detection using neutrino telescopes can impose a relatively stronger constraint and...
Source: http://arxiv.org/abs/1106.4044v1
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42
Sep 22, 2013
09/13
by
Weicong Huang; Jing Shu; Yue Zhang
texts
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We consider the Higgs portal through which light scalars contribute both to the Higgs production and decay and Higgs effective potential at finite temperature via quantum loops. The positive Higgs portal coupling required by a strongly first order electroweak phase transition is disfavored by the current Higgs data if we consider one such scalar. We observe that by introducing a second scalar with negative Higgs portal coupling, one can not only improve the Higgs fits, but also enhance the...
Source: http://arxiv.org/abs/1210.0906v2
2
2.0
Jun 29, 2018
06/18
by
Zhiyang Teng; Yue Zhang
texts
eye 2
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Sequential LSTM has been extended to model tree structures, giving competitive results for a number of tasks. Existing methods model constituent trees by bottom-up combinations of constituent nodes, making direct use of input word information only for leaf nodes. This is different from sequential LSTMs, which contain reference to input words for each node. In this paper, we propose a method for automatic head-lexicalization for tree-structure LSTMs, propagating head words from leaf nodes to...
Topics: Computation and Language, Computing Research Repository
Source: http://arxiv.org/abs/1611.06788
2
2.0
Jun 29, 2018
06/18
by
Jiangming Liu; Yue Zhang
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eye 2
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Transition-based models can be fast and accurate for constituent parsing. Compared with chart-based models, they leverage richer features by extracting history information from a parser stack, which spans over non-local constituents. On the other hand, during incremental parsing, constituent information on the right hand side of the current word is not utilized, which is a relative weakness of shift-reduce parsing. To address this limitation, we leverage a fast neural model to extract lookahead...
Topics: Computation and Language, Computing Research Repository
Source: http://arxiv.org/abs/1612.00567
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42
Sep 21, 2013
09/13
by
Yue Zhang; Haipeng An; Xiangdong Ji; Rabindra N. Mohapatra
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In minimal left-right symmetric theories, the requirement of parity invariance allows only one complex phase in the Higgs potential and one in the Yukawa couplings, leading to a two-phase theory with both spontaneous and explicit CP violations. We present a systematic way to solve the right-handed quark mixing matrix analytically in this model and find that the leading order solution has the same hierarchical structure as the left-handed CKM matrix with one more CP-violating phase coming from...
Source: http://arxiv.org/abs/0712.4218v1
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46
Sep 23, 2013
09/13
by
Shao-Long Chen; Rabindra N. Mohapatra; Shmuel Nussinov; Yue Zhang
texts
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We propose a new class of R-parity violating extension of MSSM with type II seesaw mechanism for neutrino masses where an unstable gravitino is the dark matter of the Universe. It decays predominantly into three leptons final states, thereby providing a natural explanation of the positron excess but no antiproton excess in the PAMELA experiment. The model can explain neutrino masses without invoking any high scale physics while keeping the pre-existing baryon asymmetry of the universe in tact.
Source: http://arxiv.org/abs/0903.2562v3
Extreme climate events have become more frequent and severe as a result of climate change. In semi-arid pastoral regions, extreme drought is harmful to livestock production and to vulnerable human communities and livelihoods. In this study, we considered extreme drought in semi-arid regions and investigated climate adaptations taken by the local vulnerable households and their effects on livestock production. We first analyzed the characteristics of spatio-temporal variation of extreme drought...
Topics: Climate adaptation, Extreme drought, Hulun Buir, Technical efficiency of livestock production
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Sep 23, 2013
09/13
by
Panying Chen; Xiangdong Ji; Yue Zhang
texts
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We derive the effective angular momentum operator to $1/m^2$ and one-loop order in non-relativistic quantum electrodynamics (NRQED). In both dimensional and three-momentum-cutoff regularization schemes, we obtain the non-relativistic expansion for the spin and orbital angular momentum operators of the electron and photon, respectively. Our result is useful in precision calculations of the angular momentum properties for non-relativistic QED bound states, such as atom systems.
Source: http://arxiv.org/abs/1012.3668v2
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84
Jul 20, 2013
07/13
by
Yue Zhang; Haipeng An; Xiangdong Ji; Rabindra N. Mohapatra
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We show that in supersymmetric left-right models (SUSYLR), the upper bound on the lightest neutral Higgs mass can be appreciably higher than that in minimal supersymmetric standard model (MSSM). The exact magnitude of the bound depends on the scale of parity restoration and can be 10-20 GeV above the MSSM bound if mass of the right-handed gauge boson $W_R$ is in the TeV range. An important implication of our result is that since SUSYLR models provide a simple realization of seesaw mechanism for...
Source: http://arxiv.org/abs/0804.0268v3
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1.0
Apr 5, 2021
04/21
by
Jian-Jun, Wang; Wen-Yan, Chen; Min-Yue, Zhang; Qi-Xiang, Yu
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eye 1
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31
31
Sep 23, 2013
09/13
by
K. S. Babu; J. Julio; Yue Zhang
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eye 31
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We study perturbative unitarity constraints on general W' models by considering the high energy behavior of fermion scattering into gauge bosons. In most cases we survey, a Z' boson with a comparable mass must be present for the theory to be consistent, with fixed couplings to the standard model gauge bosons and fermions. Applying these results to a class of W' models which explains the top quark forward-backward asymmetry observed at the Tevatron, we find that a Z' must exist with a mass below...
Source: http://arxiv.org/abs/1111.5021v1
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73
Sep 23, 2013
09/13
by
Yue Zhang; Haipeng An; Xiangdong Ji
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eye 73
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We study flavor-changing neutral current and CP violations in the minimal supersymmetric left-right model. We calculate the beyond-standard-model contributions to the neutral kaon mixing $\Delta M_K$ and $\epsilon$, and find possible to have a numerical cancelation between the contributions from the right-handed gauge boson and supersymmetric box diagram. With the cancelation, the right-handed $W$-boson mass scale can be lowered to about 2 TeV, well within the search limit of LHC.
Source: http://arxiv.org/abs/0710.1454v2
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47
Jul 20, 2013
07/13
by
Jing Shu; Yue Zhang
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eye 47
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We observe a generic connection between LHC Higgs data and electroweak baryogenesis: the particle that contributes to CP violating $hgg$ or $h\gamma\gamma$ vertex would provide a CP violating source during first order phase transition. It is illustrated in the 2HDM that a common CP violating phase controls the lightest Higgs properties at the LHC, electric dipole moments and the CP violating source for electroweak baryogenesis. We perform a general parametrization of Higgs effective couplings...
Source: http://arxiv.org/abs/1304.0773v1
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12
Jun 28, 2018
06/18
by
Tian Qiu; Yue Zhang; Jie Liu; Hongjie Bi; S. Boccaletti; Zonghua Liu; Shuguang Guan
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eye 12
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Two decades ago, a phenomenon resembling Landau damping was described in the synchronization of globally coupled oscillators: the evidence of a regime where the order parameter decays when linear theory predicts neutral stability for the incoherent state. We here show that such an effect is far more generic, as soon as phase oscillators couple to their mean field according to their natural frequencies, being then grouped into two distinct populations of conformists and contrarians. We report...
Topics: Chaotic Dynamics, Nonlinear Sciences
Source: http://arxiv.org/abs/1507.05383
Abrupt climate change such as the loss of Arctic sea-ice area urgently needs negative emissions technologies. The potential application of direct air capture of carbon dioxide from indoor air and outdoor air in closed buildings or crowded places has been discussed in this paper. From the aspects of carbon reduction and indoor comfort, the ventilation system integrating a capture device is of great value in practical use. For ultra-dilute carbon dioxide sources, many traditional separation...
Topics: NETs, Second-law efficiency, TVSA, Thermodynamics
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29
Sep 20, 2013
09/13
by
Xiangdong Ji; Yingchuan Li; Yue Zhang
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eye 29
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We point out that the correlation between the large atmospheric neutrino mixing and the $b \to s$ transition, if exists, comes from the lopsided flavor structure in SO(10) grand unification theory. We suggest testing the correlation by studying the deviation of $S_{\phi K_S}$ and $S_{\eta' K_S}$ from the standard model predictions along with the constraints from $\Delta M_{B_S}$ and $b\to s \gamma$ in a realistic SO(10) model with lopsided flavor structure. We find a specific correlation...
Source: http://arxiv.org/abs/hep-ph/0612114v2
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49
Sep 19, 2013
09/13
by
Panying Chen; Xiangdong Ji; Yang Xu; Yue Zhang
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eye 49
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We study angular momentum in non-relativistic quantum electrodynamics (NRQED). We construct the effective total angular momentum operator by applying Noether's theorem to the NRQED lagrangian. We calculate the NRQED matching for the individual components of the QED angular momentum up to one loop. We illustrate an application of our results by the first calculation of the angular momentum of the ground state hydrogen atom carried in radiative photons, $\alpha_{\rm em}^3/18\pi$, which might be...
Source: http://arxiv.org/abs/0909.1560v1
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2.0
Apr 5, 2021
04/21
by
Yue, Zhang; Ting-Zheng, Wang; Gao-Yong, Qiu; Ya-Wei, Tian
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